Results 111 to 120 of about 303 (126)
The Development of the Sorus and Sporangium and the Prothallus of Peranema cyatheoides, D. Don. [PDF]
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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On a Variety of Scolopendrium vulgare 1that bears Sporangia on the Prothallus
Annals of Botany, 1929William Henry Lang
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An Asexual Growth from the Prothallus of Pteris Cretica
Journal of Cell Science, 1874ABSTRACT While studying the development of the archegonium in the Polypodiaceœ, in the botanical laboratory of the University of Strassburg, a peculiarity was first noticed in the prothallus of Pteris cretica which seems to have an important bearing on the question of the fern prothallus in general.
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XXV.—The Prothallus of Tmesipteris Tannensis
Transactions of the Royal Society of Edinburgh, 1917The Psilotaceæ constitute one of the most interesting of existing Pteridophyte groups. This interest is mainly due to their phylogenetic isolation. They are perhaps the most isolated of existing types—showing no close affinity to other Pteridophytes. They are very highly specialised in their anatomy, habit, and habitat, and limited to a comparatively ...
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Self-fertility in a Prothallus of Equisetum telmateia, Ehr.
Nature, 1964FOR more than a hundred years there have been conflicting statements regarding sex-determination in Equisetum. In the earliest accounts, the prothalli were described as unisexual. Later, it became accepted that archegoniate prothalli were also capable of bearing antheridia.
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Morphology of the prothallus and juvenile sporophytes of some species ofDryopteris
Proceedings / Indian Academy of Sciences, 1977Prothalli and juvenile sporophyte of seven species ofDryopteris are described. Spore germination is of Vittaria-type and prothallial development is of the Aspidium-type with the characteristic range of variations in the different species.
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Proceedings of the Royal Society of Edinburgh. Section B. Biology, 1949
The rapid spread of bracken in some parts of the country has led to considerable investigation into the habits of the plant. But in almost all cases it is the spread of the adult sporophyte which has been described, and little attention has been paid to the insignificant, complementary half of the life cycle—the prothallus.
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The rapid spread of bracken in some parts of the country has led to considerable investigation into the habits of the plant. But in almost all cases it is the spread of the adult sporophyte which has been described, and little attention has been paid to the insignificant, complementary half of the life cycle—the prothallus.
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Cryo letters, 2014
Neottopteris nidus prothalli and green globular bodies (GGBs) were successfully cryopreserved by droplet-vitrification. Prothalli were subjected to different treatments. The following parameters were studied: the age of in vitro mother plants from which prothalli were originated (30 to 90-day old), length of exposure to loading solution (LS) (20 to 40 ...
Tengmin, Li +3 more
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Neottopteris nidus prothalli and green globular bodies (GGBs) were successfully cryopreserved by droplet-vitrification. Prothalli were subjected to different treatments. The following parameters were studied: the age of in vitro mother plants from which prothalli were originated (30 to 90-day old), length of exposure to loading solution (LS) (20 to 40 ...
Tengmin, Li +3 more
openaire +1 more source

